Linotype casting mechanism.



'G. T. TRUNDLE. LINOTYPE GASTING MECHANISM. APPLICATION FILED JULY 14, 1913.

1 1 2, 1 Patented Dec. 29, 1914.

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UNITED T FJFTOE.

GEORGE T. TRUNDLE, 0F CLEVELAND, OHIO,

ASSIGNOR TO THE AMERICAN MULTI- GRAPH COMPANY, OF CLEVELAND, OHIO, A CORPORATION OF OHIO.

mnorrrn CASTING MECHANISM.

Specification of Letters Patent.

Patented Dec. 29, 1914.

Application filed July 14, 1913. Serial No. 778,876.

To all whom it may concern:

Be it known that I, GEORGE T. TRUNDLE, a citizen of the United States, residing at Cleveland, in the county of Cuyahoga and State of Ohio, have invented a certain new and useful Improvement in Linotype Casting Mechanism, of which the following is a lear, and exact description, reference had to the accompanying drawlngs.

their opposite sides. Such slugs may conveniently carry the characters of an address and be mounted in slots in a plate, whereby a simple and effective address plate is provided. Slugs may also be mounted in a printing device having rails with overhanging edges, like the commercial multigraph, or in a flexible blanket formed of rails, like the flexotype.

ly mechanism is adapted to use with the ordinary Mergenthaler machine, which assembles matrices. The mechanism comprises a suitable separable mold mounted on a mold wheel of the Mergenthaler machine, combined with suitable mechanism for automatically opening and closingthe mold, thus enabling the slugs with the opposite grooves and the projecting feet to be cast and thereafter freed from the mold. After being discharged, it is only necessary to break off or OthQIWISBIGIIIOVG the jet or base portion of the slug to leave the finished Referring by numerals to the parts shown in the drawing, 1 indicates a mold Wheel having a hub2 by which it the bearing 3. The wheel is held in its is journaled inbearing by a stationary stud 4: the hub 2 and h ing. As hown, this locking is accomplished by a key 6 between the stud and bearing and a nut screwing onto the threaded end of the stud. he wheel a box 10 having a of the wheel.

flanges to receive the flanges 16. outer edges the blocks 20 and 21 are held by small T-shaped blocks 26, secured by screws 25 to the face of the wheel, and overhanging ribs 27 on the blocks 20 and 21.

he construction described holds the blocks 20 and '21 snugly against the face of the mold wheel while allowing them to be moved toward or from each other. Mechanism for causing such movement will be hereinafter described.

The blocks 20'and 21 overhang the outer face of the box 10, as clearly shown in Fig. 2, and, such overhanging portions are provided with beveled edges 30 adjacent to the box,

7 suitable melting pot the casting m and then with grooves 31, and, at their with rabbets32. There remain ribs between the grooves and rabbets which project toward each other into the mold space. Accordingly, when nearly together,

outer faces,

there is provided a mol space which contracts from the width of the main sprue space toward an intermediate line and then spreads into a mold space having approximately the cross section 0 the letter I. Accordingly, the box and the two blocks co'ciperate to provide a mold for casting a line slug of the form desired, with the base or jet portion connected therewith by a narrow neck.

Fig. 2 shows, at 40, matrices having in their edges, intaglio characters 41 to form the characters on the cast slug. These matrices may. be of the usual Mergenthaler form and are held in the usual box 43 against the outer face of the blocks 20 and 21. A groove 44 in the block 21 enables the matrices to occupy a raised position to present a second set of characters. Coeperating with the inner face of the box 10 is the spout 45 of a 4:6. escribed coeperate to enable the mold space of a slug 0 the. form shown at A inFig. 2. After such slug is cast, it is only necessary to remove it from the mold and separate, by breaking or otherwise, the base portion of the slug to leave the finished slug shown at A in Fig. 4.

' To enable the removal of the cast slug,- provide mechanism for automatically sepa- The parts (1 rating the mol wheel 1 revolves after slu The mechanism shown for this purpose comprises a pair of levers 50 (Figs. 1 and 3) pivoted at 51 to the mold wheel and connected by links 52 and 53 with the blocks 20 and 21, respectively. These links are pivoted to the levers at 54: and 55 and exten in opposite directions, and at their outer ends are pivoted at 56 and 57 to ears 58 an 59 projecting and 21, respectively. endsof the levers 50 are ends of which are pivoted by a common pivot 62 to a bar 64. The outer end of this bar is slidably guided radially of the wheel by a pin 65 carried by the .bar and having a head which occupies an undercut radial slot 66 in the mold wheel. The inner en of the bar is journaled on a bushing 70 clamped to the head 5 of the central stud by a pin 71 having a head engaging an undercut groove 7 2 in the head, the other end of the pin being threaded and having a nut 74. The groove 72 is diametric of the head 5. The nut 7 4 clamps the pin 71 and bushing 70 in stationary but adjustable position on the head. This position, as shown, is eccentric of the mold wheel, wherefore, as the the casting of the travels in and the blocks are d casting,-that is, with the blocks 20 and 21 d blocks 20 and 21 as the.

- and means for holding matrices, of

the outer end of the bar 64 out, moving the pivot 62 of the links and thereby swinging the levers 50 to move the blocks 20 and 21.

When the mold. wheel is in position for wheel revolves,

in their uppermost position, the pivot pin 62 on the bar 64 has its outermost position,

bringing the, blocks into their innermost pos1- tions, as shown in Fig. stitute the mold for the slug. After the casting of the slug, the mold wheel starts to revolve, and in this movement the pin 65 slides radially inward in the slot 66, thus pullingon the links 60 and levers 50 and gradually separating the mold blocks 20 and 21. This movement may be sufficient so that when the mold wheel has made a quarter turn, the blocks are separated by a distance as great as the cross section of the moldppening 11, so that the slug may 2, where they con? head portion of the be conveniently shoved out between the blocks by means of a suitable plunger acting outwardly through the inner face of the wheel.

he discharge of the cast slug may be made at any suitable point in the revolution of the mold wheel. I find it convenient to cast the slug when the mold blocks are at the top of their movement and discharge the slug three-quarters of a rotation beyond such point, the blocks simply opening idly farther than necessary to clear the slug and then returning through such 'idle movement during the lower half of the rotation. Fig. 1 shows, in dotted lines in the lower half of the circle, the mold blocks in this abnormally separated position.

I have shown the links 60 made in a sinuous form, so as to give them a slight spring action, whereby the mold blocks may be forced snugly into their innermost position. This innermost position is limited by the projecting portion of the box members 12.

Having thus described my invention, what I claim is:

1. In a mechanism of the scribed, the combination, with a mold wheel a mold mounted on the wheel and having a movable head-part with oppositely facing ribs extending lengthwise of the mold, whereby a slug having longitudinal grooves on its opp'osite sides may be cast, and means for separating the said head-part mold to release the cast slug.

2. The combination, with means for hold-. ing matrices, of a mold having an immovable body portion, and a movable head portion with inwardly projecting ribs whereby a slug may be cast having longitudinal grooves adjacent to the printing face, and means for separating the head portion to character deallow the body portion to the head portion space.

he combination of a mold wheel, a mold carried thereby and comprising a body portion mounted stationarily on a wheel and having a prismatic slot, mounted on the Wheel in a manner enabling separation, said head portion having an in wardly projecting rib, and means for holding matrices against the head portion.

4. The combination, with a movable mold wheel, of a mold "carried thereby and comprising a body portion stationarily mounted on the mold Wheel, a head portion including two blocks having ribs on their adjacent faces, and mechanism for causing said blocks to separate after the slug is cast.

5. e combination of be ejected through ing an opening, a mold for slug mounted in said opening, a mold for the head of the slug including two blocks mount of the head portioniof the slug, said blocks being movably mounted on the face of the wheel, and mechanism operated by the rotation of the Wheel to cause the blocks to move apart.

character described, the combination ofa pair of cooperating d members, a pair of pivoted levers, links connecting said levers with the respective members, and mechanism for concurrently operating said levers.

e combination of a mold wheel, a

mold movably mounted thereon, d levers connected with the respective members, a pair of links for moving said levers. and mechanism for automatically moving the links when the mold Wheel revolves.

10. The combination of a mold wheel, a

pair of mold thereon, a stationary stud pair of he combination of a mold wheel having an opening, a box mounted in said open ing and providing a mold for the body portion of the slug, said box having projecting flanges spaced beyond the face of the mold wheel to leave grooves, a pair of movable and a head portion 1 blocks ribbed to provide a, mold for the head portion of the slug, said blocks having flanges occupying said grooves.

12. The combination of a mold for the body portion of the slug,and a. pair of cooperating members for molding the head portion of the slug, said member-shaving ribs and adjacent grooves extending lengthwise of the mold and having inclined POI".

' tions extending from points near the groove to the outer face of the b 13. T e combination, with a mold having a prismatic opening for the body portion of a slug, and two relatively movable members grooved and ribbed lengthwise of the mold, and means for holding them with such grooved and ribbed portions opposite each other and spaced apart and in line with the opening of the body mold.

' he combination, with means for holding a line of matrices, of a mold Wheel, a body mold carried by pair of mold members forre ease the cast slug.

.15. The combination, with means for holding a line of matrices, of a mold Wheel, a body mold carried by the mold Wheel, a pair of mold members for the head portion of the slug cooperating at one side with the matrices and at the other with the body mold, and automatic mechanism operating in consequence of' the rotation of the mold Wheel with means for I a hne of matrices, of a mold having a body portion defining a prismatic slot, and a movable head portion having a longitudinal rib whereby a slug may be cast having a longitudinal groove adjacent to the printing face.

19. The combination of means for of a body mold, a

a mold wheel, a

.mold carried thereby and comprising a body portion consisting members mounted wheel, and a head of side members and end in an opening in the portion comprising two the mold Wheel, a

blocks mounted on the face of the mold coact with the matrices and movably mountwheel between the end members and seped on the face of the Wheel.

arable to release the slug. In testimony whereof, I hereunto affix my 20. The combination of a mold Wheel havsignature in the presence of two Witnesses.

5 ing an opening, a mold for the body of the GEORGE T. TRUNDLE.

- slug including side members rigidly mountlVitnessest w ed in said opening, and a mold for the head ALBERT H. BATES, of the slug including two blocks adapted to i V. R. ALLEN. 

